Models of cognition that have reached a sufficient degree of formalization are not, as a rule, endowed with a `sense of time'. It is still a far cry to expect your robutler to pour your cup of coffee `later' in a way that suits the context in which you have used the term `later'. What type of representation is needed to build a system that is endowed with a proper sense of time? In this paper we first trace some conditions that have to be met if we are to answer this question. Also, a number of cognitive skills that require the explicit manipulation of a temporal representation are considered. We then attempt to show the potential of some popular approaches to cognition and action.
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